1.

In which reaction H_2O_2 acts reducing agent?

Answer»

`Ag_2O +H_2O_2 rarr2Ag +H_2O +O_2`
`2KI +H_2O_2 RARR rarr2KOH +1_2`
`PBS +4H_2O_2 rarrPbSO_4+4H_2O`
`H_2O_ 2 +SO_2 rarrH_2SO_4`

ANSWER :A


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